# Is https://playground.babylonjs.com/ down?

**URL:** <https://forum.babylonjs.com/t/is-https-playground-babylonjs-com-down/28789>\
**Category:** Questions\
**Created:** [March 26, 2022, 8:36pm UTC](https://forum.babylonjs.com/t/is-https-playground-babylonjs-com-down/28789 "2022-03-26T20:36:36Z")\
**Posts on this page:** 1\
**Showing post:** 4

<div class="post-metadata">

**Author:** ![satguru](https://avatars.discourse-cdn.com/v4/letter/s/e480ec/32.png) [@satguru](https://forum.babylonjs.com/u/satguru)\
**Post date:** [March 27, 2022, 1:12am UTC](https://forum.babylonjs.com/t/is-https-playground-babylonjs-com-down/28789/4 "2022-03-27T01:12:15Z")

</div>

I see bunch of error message in console and the playground never comes up

react-dom.production.min.jss:216 TypeError: Cannot read properties of undefined (reading ‘LastCreatedEngine’)  
at Le.updateDescription (headerComponent.tsxx:36:13)  
at Le.componentDidMount (headerComponent.tsxx:44:14)  
at ga (react-dom.production.min.jss:219:411)  
at Ll (react-dom.production.min.jss:259:160)  
at t.unstable\_runWithPriority (scheduler.production.min.jss:18:343)  
at Ko (react-dom.production.min.jss:122:325)  
at kl (react-dom.production.min.jss:252:279)  
at ml (react-dom.production.min.jss:243:371)  
at cl (react-dom.production.min.jss:237:175)  
at $l (react-dom.production.min.jss:285:27)  
sa @ react-dom.production.min.jss:216  
n.callback @ react-dom.production.min.jss:216  
gr @ react-dom.production.min.jss:131  
ga @ react-dom.production.min.jss:220  
Ll @ react-dom.production.min.jss:259  
t.unstable\_runWithPriority @ scheduler.production.min.jss:18  
Ko @ react-dom.production.min.jss:122  
kl @ react-dom.production.min.jss:252  
ml @ react-dom.production.min.jss:243  
(anonymous) @ react-dom.production.min.jss:123  
t.unstable\_runWithPriority @ scheduler.production.min.jss:18  
Ko @ react-dom.production.min.jss:122  
Zo @ react-dom.production.min.jss:123  
$o @ react-dom.production.min.jss:122  
(anonymous) @ react-dom.production.min.jss:244  
Jl @ react-dom.production.min.jss:289  
t.render @ react-dom.production.min.jss:296  
Show @ playground.tsxx:159  
(anonymous) @ index.js:169  
Promise.then (async)  
(anonymous) @ index.js:160  
Promise.then (async)  
(anonymous) @ index.js:159  
headerComponent.tsxx:36 Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'L

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